ARG0003f4o: lobe appears split by foreground galaxy?
-
by JeanTate
The radio emission is #double, with host zsp 0.446 SDSS J233645.19+054428.4:
However, the N lobe seems to be split in two:
The split seems to coincide with the foreground galaxy zph 0.175±0.017 SDSS J233645.69+054500.6:
Maybe there's some kind of diffraction/refraction of the radio, caused by passing through the ISM/plasma in that foreground galaxy?
Posted
-
by Dolorous_Edd
Note that it is also green
Posted
-
by JeanTate
Here's an contour overlay image:
I did a BOTE (Back Of The Envelope) calculation of the size of the Einstein ring radius, assuming 737 cosmology and the foreground galaxy having a mass of 10^12 sols (~the same as our own galaxy) ... and was somewhat surprised that it's ~3" 😮 Maybe it's worth someone checking my arithmetic?
The contour overlay image in this post was created from sources, and using methods, described in this RGZ Talk thread. You get a gravitational lensing Einstein ring if the lens is symmetric, and the source, lens, and observer are perfectly aligned.
Posted
-
by JeanTate
ARG0002h8n may be similar, though the edge-on spiral may not be in the foreground.
Posted
-
by JeanTate
ARG0001c1v contains a good example.
Posted